Diode-pumped, narrow-linewidth, linearly polarized,passively Q-switched 1645 nm Er:YAG laser  

作　　者：于真真 王明建 侯霞 陈卫标 

机构地区：[1]Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences [2]University of Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2015年第7期73-76,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant No.61405213

摘　　要：We demonstrate a narrow-linewidth linearly polarized 1645 nm Er：YAG laser, directly diode-pumped by a fiber- coupled continuous-wave laser diode at 1532 nm. Passive Q-switching is realized by a few-layer graphene satu- rable absorber. A maximum polarized average output power of 3.13 W is achieved at 23.28 W incident pump power. A pulse energy of as much as 58.8 μJ and pulse width of 4.21 μs are yielded at a 53.2 kHz pulse repetition rate. The spectrum and linewidth of the output beams are measured to be 1645.34 and 0.05 nm, respectively. This laser can be useful in the detection of atmosphere pollutants.We demonstrate a narrow-linewidth linearly polarized 1645 nm Er：YAG laser, directly diode-pumped by a fiber- coupled continuous-wave laser diode at 1532 nm. Passive Q-switching is realized by a few-layer graphene satu- rable absorber. A maximum polarized average output power of 3.13 W is achieved at 23.28 W incident pump power. A pulse energy of as much as 58.8 μJ and pulse width of 4.21 μs are yielded at a 53.2 kHz pulse repetition rate. The spectrum and linewidth of the output beams are measured to be 1645.34 and 0.05 nm, respectively. This laser can be useful in the detection of atmosphere pollutants.

关 键 词：Continuous wave lasers Diodes ERBIUM Graphene LINEWIDTH Polarization Pulse repetition rate Q switching Saturable absorbers 

分 类 号：TN31[电子电信—物理电子学] TN248